Re: [tor-relays] DNAT question

[Damian Johnson <atagar1@xxxxxxxxx>]

The far easier method is to add a "User <tor user>" entry to your
torrc then start Tor as root. This way tor will bind to the privileged
ports then lower its permissions to the given user (I've been meaning
to update that faq entry...).

Also, I wrote a relay setup wizard that makes you a nice relay
configuration (including using 443/80) automagically. To give it a try
just...
- dowload http://www.atagar.com/transfer/tmp/arm-1.4.3rc.tar.bz2
- extract and run 'arm'
- it should pop up a wizard that looks like...
  - http://www.atagar.com/transfer/tmp/arm_wizard1.png
  - http://www.atagar.com/transfer/tmp/arm_wizard2.png
  - http://www.atagar.com/transfer/tmp/arm_wizard3.png

Arm is about to have a release in the next few days so I'd love
feedback on the wizard if you have any. Cheers! -Damian

On Fri, Jul 15, 2011 at 10:56 AM, Softail <black98fxstc@xxxxxxxxx> wrote:
> I'm trying to switch my ports from 9001/9030 to 443/80. The tor
> configuration seems straight forward. I tried
>
> /sbin/iptables --append INPUT --protocol tcp --match state --state NEW
> --destination a.b.c.d --dport 9001 --jump ACCEPT
> /sbin/iptables --append INPUT --protocol tcp --match state --state NEW
> --destination a.b.c.d --dport 9030 --jump ACCEPT
> /sbin/iptables --table nat --append PREROUTING --protocol tcp
> --source-port 443 --destination a.b.c.d --jump DNAT --to-destination :9001
> /sbin/iptables --table nat --append PREROUTING --protocol tcp
> --source-port 80 --destination a.b.c.d --jump DNAT --to-destination :9030
>
> but that doesn't seem to work. The OR and Dir ports are not reachable
> from the outside. I assumed that PREROUTING happened before INPUT but
> not really an expert on this. The firewall blocks everything else
> inbound to that address but the two ports I opened. Do I need to open
> 443/80 on the INPUT chain as well and if so do I also need to keep
> 9001/9030 open also?
>
> CentOS 5.6 if that matters.
>
> Thanks
>
> --
> A man in chains knows he should have acted sooner...
> Julian Assange
>
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>
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